/Engine/Source/Runtime/ApplicationCore/Public/GenericPlatform/GenericApplicationMessageHandler.h
virtual bool OnTouchStarted ( const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FGenericWindow](API\Runtime\ApplicationCore\GenericPlatform\FGenericWindow) > & Window, const FVector2D & Location, float Force, int32 TouchIndex, int32 ControllerId )